Vacuum lunch box



FIG. 1 is a top perspective view of a vacuum lunch box showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a bottom plan view of the lid portion, shown separately to show aspects of the design that are not visible when combined;

FIG. 9 is an exploded top perspective view thereof; and,

FIG. 10 is an exploded bottom perspective view thereof.

The broken lines shown in the figures depict portions of the vacuum lunch box that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum lunch box, as shown and described. 